This image is Zach from Michael Rosen's book Vanilla Sex.  You can get a free download of the entire PDF book at www.michaelrosen.com. Select "Vanilla Sex" under GALLERIES in the left column, then click on "downloadable PDF" on the Vanilla Sex page, and then click "Download" on the download page if you agree to the licensing terms. - Image by Michael Rosen
Here are all the facts, experiences, techniques and media/links we have on:

Gimp

A sexual partner who is used as a toy.   Usually involves a "gimp suit" which completely encloses the toy in rubber or leather.